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/*
Unix SMB/CIFS implementation.
fast routines for getting the wire size of security objects
Copyright (C) Andrew Tridgell 2003
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "librpc/gen_ndr/ndr_security.h"
/*
return the wire size of a dom_sid
*/
size_t ndr_size_dom_sid(const struct dom_sid *sid)
{
if (!sid) return 0;
return 8 + 4*sid->num_auths;
}
/*
return the wire size of a dom_sid
*/
size_t ndr_length_dom_sid(const struct dom_sid *sid)
{
if (!sid) return 0;
if (sid->sid_rev_num == 0) return 0;
return 8 + 4*sid->num_auths;
}
/*
return the wire size of a security_ace
*/
size_t ndr_size_security_ace(const struct security_ace *ace)
{
if (!ace) return 0;
return 8 + ndr_size_dom_sid(&ace->trustee);
}
/*
return the wire size of a security_acl
*/
size_t ndr_size_security_acl(const struct security_acl *acl)
{
size_t ret;
int i;
if (!acl) return 0;
ret = 8;
for (i=0;i<acl->num_aces;i++) {
ret += ndr_size_security_ace(&acl->aces[i]);
}
return ret;
}
/*
return the wire size of a security descriptor
*/
size_t ndr_size_security_descriptor(const struct security_descriptor *sd)
{
size_t ret;
if (!sd) return 0;
ret = 20;
ret += ndr_size_dom_sid(sd->owner_sid);
ret += ndr_size_dom_sid(sd->group_sid);
ret += ndr_size_security_acl(sd->dacl);
ret += ndr_size_security_acl(sd->sacl);
return ret;
}
/*
print a dom_sid
*/
void ndr_print_dom_sid(struct ndr_print *ndr, const char *name, const struct dom_sid *sid)
{
ndr->print(ndr, "%-25s: %s", name, dom_sid_string(ndr, sid));
}
void ndr_print_dom_sid2(struct ndr_print *ndr, const char *name, const struct dom_sid *sid)
{
ndr_print_dom_sid(ndr, name, sid);
}
void ndr_print_dom_sid28(struct ndr_print *ndr, const char *name, const struct dom_sid *sid)
{
ndr_print_dom_sid(ndr, name, sid);
}
/*
convert a dom_sid to a string
*/
char *dom_sid_string(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
{
int i, ofs, maxlen;
uint32_t ia;
char *ret;
if (!sid) {
return talloc_strdup(mem_ctx, "(NULL SID)");
}
maxlen = sid->num_auths * 11 + 25;
ret = talloc_size(mem_ctx, maxlen);
if (!ret) return talloc_strdup(mem_ctx, "(SID ERR)");
ia = (sid->id_auth[5]) +
(sid->id_auth[4] << 8 ) +
(sid->id_auth[3] << 16) +
(sid->id_auth[2] << 24);
ofs = snprintf(ret, maxlen, "S-%u-%lu",
(uint_t)sid->sid_rev_num, (unsigned long)ia);
for (i = 0; i < sid->num_auths; i++) {
ofs += snprintf(ret + ofs, maxlen - ofs, "-%lu", (unsigned long)sid->sub_auths[i]);
}
return ret;
}
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